10 Tips on Energy Saving in Pumping Systems
If your industrial or home equipment contains a pump, or you have a plan to use a pump, these 10 tips to save energy are something you need to know!
The application of the pump is all-encompassing. It is a widely used mechanical device. Since it needs to be used with a motor, the energy consumed during operation cannot be underestimated. Therefore, it is necessary to protect the pump and protect nature through energy conservation. Today's factories are mostly seeking to improve industrial energy efficiency and productivity. In addition to adopting equipment that meets national energy saving standards, the following describes what other energy saving solutions can be adopted, as well as related suggestions.
For more information on energy issues: Application of Hydrogen Energy and Applicable Pumps
1. Choose the Right Pump
The operating conditions are the main basis for pump selection. On the safe side, the safety factors will be kept when selecting the pump, in case the condition exceeds the initially provided conditions when operating (such as the flow becomes larger), causing the shaft power to exceed the rated power. If the pump is oversizing, it will not be able to reach best efficiency point, resulting in unnecessary energy waste and maintenance costs. The site operating conditions must be considered and the best efficiency point of the pump performance curve must be considered to correctly select the optimal pump that meets the needs of the application.
How to read pump performance curve and duty point: Reading and understand the Pump Performance Curve
2. Implement Variable Speed Drives (VSDs)
The variable speed drives can be installed on the motor, or the pump can be controlled by a built-in variable speed drive. The variable speed drive can adjust the head and flow rate by varying the rotational speed of the motor, which can meet the changing system requirements. From the formula below, it can be known that the reduction of the speed can save the power consumption of the power of third, improve the efficiency, and also help to prolong the service life. However, the head will drop accordingly, so attention should be paid to whether there is a problem that the pump cannot pump the liquid.
3. Use high-Efficiency Pumps
Use high-efficiency pumps as much as possible, and select the correct pump model according to the fluid characteristics, application area, flow rate, and power requirements, and use it with a high-efficiency motor. This method can achieve the greatest energy-saving effect.
4. Parallel Pumping Systems
For systems with different load requirements, adjusting the pump configuration is a good alternative to VFD. Multiple pumps or large and small pumps are connected in parallel to operate with proper staging as a system, mainly one (larger) main pump is responsible for most of the delivery, when there is more flow demand, or sudden damage, it can start other (smaller) pumps to support, reduce the burden on the main pump. Paralleling pumps helps to control the flow rate, adjust the flow rate, and keep the head constant, so the efficiency can be effectively improved. Basically, the energy efficiency of each pump needs to be determined to make the combination that can produce high efficiency.
5. Trim the Impeller
Cutting the impeller is also one of the ways to save energy for the pump, of course it must not be smaller than the impeller diameter range on the pump performance curve. The impeller becomes smaller, the peripheral speed of the impeller is reduced, the energy transferred to the fluid is reduced, the flow rate, pressure, and head are reduced, so as to reduce energy consumption and improve energy efficiency. However, there may be a risk of too much cutting and insufficient head. It is necessary to know the customer's operating conditions and then trim the impeller into an appropriate size.
6. Minimize System Pressure Drop
Reducing the power loss caused by pipeline pressure or accessories can reduce the power required by the pump to overcome the pipeline loss, so it is also an energy-saving way. Factors such as pipe size, length, flow rate, surface roughness, material and fluid characteristics will affect the pressure drop of the system, so the number of bends, expansions and contractions in the pipework should be minimized during design. In pump selection, it is also necessary to know the reasonableness flow rate needs to be matched with a reasonable pipe diameter.
7. Implement Control Valves Effectively
Control valves are used to control flow or pressure. Valves prevent energy loss through throttling and bypass flow, and can keep flow as its optimal level without wasting energy. Selecting the correct pump control valve according to the piping system can greatly reduce head loss and achieve energy saving.
8. Choose the Proper Pump Seals
Sealing systems including static and dynamic seals affect efficiency. Leakage of static and dynamic seals not only wastes fluid and pollutes the environment, but also reduces pump volumetric efficiency. In many applications, the energy savings from a high-efficiency seal system can be more significant than using a variable frequency drive, trimming the impeller, or resizing the pump.
9. Eliminate Unnecessary Use
Shut down unnecessary pumps at the right time, this is the simplest method, but it is also easily overlooked. Pressure switches can be used to control the number of pumps in use as the flow rate requirement changes.
10. Maintain the Pumps Regularly
Regular maintenance work and efficiency testing can ensure that the pump is kept in the best operating area during operation, and if there are problems with parts, they can be detected and replaced early, and the possibility of these problems causing failure or efficiency decline can be reduced. In addition, since a pump that has not been properly maintained for many years, its operating efficiency may be worse than it was purchased, so regular maintenance is also a necessary link. 
Pump Maintenance Points: Pump Maintenance Guide
After understanding the above top ten pump energy-saving tips, we should take appropriate measures according to the relevant standards of pump efficiency in various countries and the operating environment, and work together to save energy and electricity, and also to ensure the safety of equipment.
PTCXPUMP Sealless Magnetic Drive Pumps Can Be Safely Applied
PTCXPUMP sealless magnetic drive pump is used in lots of industries to provide you with the best solution to transfer fluid. Compared with traditional mechanical shaft seal pumps, the sealless design can effectively avoid leakage and avoid the problem of fluid waste, which is also helpful for improving efficiency. In addition, the material is GFR-PP and CFR-ETFE, which has excellent corrosion resistance and is suitable for transporting highly corrosive liquid such as hydrochloric acid, sulfuric acid, hydrofluoric acid and acetic acid or flammable and explosive fluids.
In the PTCXPUMP sealless magnetic drive pump series, PTC-100 ~ PTC-251 are for small applications, and PTC-400 ~ PTC-675 are for medium and large applications. There are various models to meet your various operating needs.
PTCXPUMP is committed to becoming your preferred choice for resting assured to use pumps.
Contact us and our professional team will work with you. According to the actual operating conditions, to select the best pump for you. By choosing the correct type of pump to achieve high efficiency and energy saving.
